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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Update of "ZooKeeper/ServiceLatencyOverview" by PatrickHunt
Date Tue, 27 Oct 2009 21:44:34 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Hadoop Wiki" for change notification.

The "ZooKeeper/ServiceLatencyOverview" page has been changed by PatrickHunt.
http://wiki.apache.org/hadoop/ZooKeeper/ServiceLatencyOverview?action=diff&rev1=12&rev2=13

--------------------------------------------------

  110k operations against the server with elapsed time of 18 seconds
  
  {{{
+ host40: created   10000 permanent znodes  in   3705 ms (0.370585 ms/op 2698.435645/sec)
+ host40: set       10000           znodes  in   1581 ms (0.158110 ms/op 6324.698298/sec)
+ host40: get       10000           znodes  in   1719 ms (0.171902 ms/op 5817.264317/sec)
+ host40: deleted   10000 permanent znodes  in   1417 ms (0.141717 ms/op 7056.330469/sec)
+ host40: created   10000 ephemeral znodes  in   1602 ms (0.160281 ms/op 6239.035623/sec)
+ host40: watched   50000           znodes  in   9156 ms (0.183121 ms/op 5460.880962/sec)
+ host40: deleted   10000 ephemeral znodes  in   2210 ms (0.221096 ms/op 4522.914060/sec)
+ host40: notif     50000           watches in      0 ms (included in prior)
+ host40: Latency test complete
+ host40: 16.77user 7.79system 0:22.02elapsed 111%CPU (0avgtext+0avgdata 0maxresident)k
+ host40: 0inputs+0outputs (2major+71106minor)pagefaults 0swaps
  }}}
  
  === 1 Core - 10 Client ===
@@ -270, +281 @@

  1.1 million operations against the server with elapsed time of 58 seconds
  
  {{{
+ host43: created   10000 permanent znodes  in  15068 ms (1.506821 ms/op 663.648755/sec)
+ host43: set       10000           znodes  in   6400 ms (0.640035 ms/op 1562.414824/sec)
+ host43: get       10000           znodes  in   6858 ms (0.685819 ms/op 1458.111314/sec)
+ host43: deleted   10000 permanent znodes  in   5444 ms (0.544488 ms/op 1836.588407/sec)
+ host43: created   10000 ephemeral znodes  in   5467 ms (0.546737 ms/op 1829.034317/sec)
+ host43: watched   50000           znodes  in   9212 ms (0.184244 ms/op 5427.576914/sec)
+ host43: deleted   10000 ephemeral znodes  in   2204 ms (0.220440 ms/op 4536.389994/sec)
+ host43: notif     50000           watches in      0 ms (included in prior)
+ host43: Latency test complete
+ host43: 16.49user 7.50system 0:52.00elapsed 46%CPU (0avgtext+0avgdata 0maxresident)k
+ host43: 0inputs+0outputs (2major+73374minor)pagefaults 0swaps
  }}}
  
  === 1 Core - 20 Client ===
@@ -277, +299 @@

  2.2 million operations against the server with elapsed time of 150 seconds
  
  {{{
+ host47: created   10000 permanent znodes  in  23807 ms (2.380728 ms/op 420.039583/sec)
+ host47: set       10000           znodes  in  18242 ms (1.824297 ms/op 548.156301/sec)
+ host47: get       10000           znodes  in   8831 ms (0.883173 ms/op 1132.281006/sec)
+ host47: deleted   10000 permanent znodes  in  13448 ms (1.344885 ms/op 743.558057/sec)
+ host47: created   10000 ephemeral znodes  in  11384 ms (1.138425 ms/op 878.406797/sec)
+ host47: watched   50000           znodes  in  10753 ms (0.215074 ms/op 4649.572468/sec)
+ host47: deleted   10000 ephemeral znodes  in   5636 ms (0.563623 ms/op 1774.235993/sec)
+ host47: notif     50000           watches in      0 ms (included in prior)
+ host47: Latency test complete
+ host47: 16.20user 6.97system 1:33.16elapsed 24%CPU (0avgtext+0avgdata 0maxresident)k
+ host47: 0inputs+0outputs (0major+71849minor)pagefaults 0swaps
  }}}
  
  === 2 Core - 1 Client ===
@@ -284, +317 @@

  110k operations against the server with elapsed time of 20 seconds
  
  {{{
+ host40: created   10000 permanent znodes  in   1910 ms (0.191017 ms/op 5235.149647/sec)
+ host40: set       10000           znodes  in   1604 ms (0.160475 ms/op 6231.495923/sec)
+ host40: get       10000           znodes  in   1708 ms (0.170852 ms/op 5853.005323/sec)
+ host40: deleted   10000 permanent znodes  in   1512 ms (0.151266 ms/op 6610.874968/sec)
+ host40: created   10000 ephemeral znodes  in   1597 ms (0.159736 ms/op 6260.325280/sec)
+ host40: watched   50000           znodes  in   9361 ms (0.187236 ms/op 5340.855592/sec)
+ host40: deleted   10000 ephemeral znodes  in   2278 ms (0.227898 ms/op 4387.931573/sec)
+ host40: notif     50000           watches in      0 ms (included in prior)
+ host40: Latency test complete
+ host40: 17.01user 7.95system 0:20.52elapsed 121%CPU (0avgtext+0avgdata 0maxresident)k
+ host40: 0inputs+0outputs (0major+74021minor)pagefaults 0swaps
  }}}
  
  === 2 Core - 10 Client ===
@@ -291, +335 @@

  1.1 million operations against the server with elapsed time of 53 seconds
  
  {{{
+ host49: created   10000 permanent znodes  in   7788 ms (0.778842 ms/op 1283.957982/sec)
+ host49: set       10000           znodes  in   4339 ms (0.433999 ms/op 2304.153334/sec)
+ host49: get       10000           znodes  in   2371 ms (0.237105 ms/op 4217.544356/sec)
+ host49: deleted   10000 permanent znodes  in   4862 ms (0.486300 ms/op 2056.345873/sec)
+ host49: created   10000 ephemeral znodes  in   3569 ms (0.356916 ms/op 2801.775772/sec)
+ host49: watched   50000           znodes  in   9279 ms (0.185594 ms/op 5388.116824/sec)
+ host49: deleted   10000 ephemeral znodes  in   2004 ms (0.200473 ms/op 4988.202935/sec)
+ host49: notif     50000           watches in      0 ms (included in prior)
+ host49: Latency test complete
+ host49: 16.35user 7.39system 0:35.09elapsed 67%CPU (0avgtext+0avgdata 0maxresident)k
+ host49: 0inputs+0outputs (3major+72326minor)pagefaults 0swaps
  }}}
  
  === 2 Core - 20 Client ===
@@ -298, +353 @@

  2.2 million operations against the server with elapsed time of 108 seconds
  
  {{{
+ host53: created   10000 permanent znodes  in  14369 ms (1.436911 ms/op 695.937229/sec)
+ host53: set       10000           znodes  in   9219 ms (0.921955 ms/op 1084.652098/sec)
+ host53: get       10000           znodes  in   7673 ms (0.767396 ms/op 1303.108503/sec)
+ host53: deleted   10000 permanent znodes  in   7229 ms (0.722930 ms/op 1383.259375/sec)
+ host53: created   10000 ephemeral znodes  in   8599 ms (0.859978 ms/op 1162.819917/sec)
+ host53: watched   50000           znodes  in  12619 ms (0.252387 ms/op 3962.162335/sec)
+ host53: deleted   10000 ephemeral znodes  in   4642 ms (0.464251 ms/op 2154.009006/sec)
+ host53: notif     50000           watches in      0 ms (included in prior)
+ host53: Latency test complete
+ host53: 14.44user 5.08system 1:05.21elapsed 29%CPU (0avgtext+0avgdata 0maxresident)k
+ host53: 0inputs+0outputs (2major+69809minor)pagefaults 0swaps
  }}}
  
  === 4 Core - 1 Client ===

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